Traveling music-roll.



PATBNTBD JAN. 24, 1905.v

H. M. SMITH.

TRAVELING MUSIC ROLL.

APPLICATION FILED NOV. 6,1899.

SHEETS-SHEET 1.

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` PATENTBD JAN. 24., 1905.

, Nql 780,689.

' H. M. SMITH. TRM-BLING MUSIC ROLL.

APPLICATION FILED NOV. 6,1899.

2 SHEETS-SHEET 2.

UNITED STATES JPatented January 24, 1905.

PATENT OFFICE.

HARRY M. SMITH, OFCHICAGO, ILLINOIS, ASSIGNOR TO THE AEOLIAN COMPANY, OFNEW YORK, N. Y., A CORPORATION OF CONNECTICUT.

TRAVELING MUSIC-ROLL.

SPECIFICATION forming part of Letters Patent No. 780,689, dated January24, 1905.

Application filed November 6, 1899. Serial No.736,072.A

T @ZZ whom it mai/[concern:

Be it known that I, HARRY M. SMITH, aciti- Zen of the United States,residing at Chicago, Cook county, Illinois, have invented certain newand useful Improvements in Traveling Music-Rolls, of which the followingis a specication.-

Heretofore it has been customary to form the spools or reels upon whichtracker-sheets are wound in rolls with cheeks-rigidly and immovablyaiiixed to the spindle with just suiiic'ient space between them to windthe sheet snugly. Atmospheric humidity, however, often causes the porousroll or sheet to swell, when it becomes wedged between the cheeks orslightly ridged at the edges, causing it to pull off unevenly, resultingin defective execution. This cannot be remedied by placing the cheeksoriginally at such distance apart as to allow for the expansion of thesheet, due to the absorptionof moisture, since the sheet being uncon'nedwould not be wound evenly or even if evenly wound would have no lateralsupport when absolutely dry, l

and thereupon might be drawn off irregularly. These objections` Ipropose to overcome by making the cheeks concurrently adjustable towardand from each other, so that they may be separated to compensate forexpansion of the roll or approximated to fit it snugly when dry; and myinvention therefore consists in combining with a tracker-sheetmusic-roll a longitudinally-grooved reel-spindle uponwhich it is wound,movable cheeks mounted on the end of said spindle, a revoluble screw-rodindependent of the gugdeons laid in the longitudinal groove of saidspindle and reversely threaded at its ends to engage with said cheeks,and in such other features and details are hereinafter described andclaimed.

In the drawings, Figure l is a central longitudinal section through amusic-roll and reel embodying my invention, showing the reel-cheeks setout from the edges of the roll; Fig. 2, a like longitudinal sectionshowing the cheeks adjusted snugly up against the edges of the roll;Fig. 3, a perspective view of a roll and its reel, illustrating theeffects of humidity in jamming theedges of the roll against the cheeks;Fig. 4, also a perspective view', with one reel-cheek broken away,representing the roll properly between the cheeks; Fig. 5, an endelevation of the reel; Fig.` 6, a transverse section through roll andreel, showing particularly means for anchoring or staying theadjusting-rod against endwise displacement; and Fig. 7 a modification.

A designates the music-roll or convoluted tracker-sheet, and B is thereel-spindle, upon which it is wound. Upon the ends bof this spindle,which for such purpose may be turned down or reduced, as shown, aresupported the cheeks C, intended to confine the edges of the roll andinsure its paying off evenly and accurately. Were these cheekspermanently fixed in position and abutting snuglyagain'st the roll, asin Fig. 2, under normal atmospheric conditions the tracker-sheet wouldvpull off evenly so long as such conditions were maintained; but shouldthere be an increase in humidity the sheet would swell and the edges ofthe roll jam and curl up against, the cheeks, and thereafter the payingoff would be uncertain and irregular. VAs already stated, thesediiiculties are avoided in my invention by/making the reel-cheeksadjustable toward and away from each other. There are many ways in whichthis can be done; but that which at the present time appears to me thesimplest and most effective is as follows: The cheeks, which may be ofwood, have metal hubs C', with radial offsets c, serving to lock thewooden disks thereon and provided, respectively,

with right and left'screw-threaded bores c',

as shown. The hubs are mounted to slide freely on the reduced ends ofthe spindle, and a rod D, having right and left threads atits respectiveends and a 'squared head d for the action 'of the key, is passedlongitudinally of the spindle and engaged with then reverselythreadedboresof the cheek-carrying hubs, so that by turning the rod the cheeksmay be approximated or spread apart and fixed in any given adjustment toconform to the condition of the roll. It will be noticed that this rodis distinct from the gudgeons of the spindle, so that no torsionalstrain comes upon it as the latter is rotated, tending to disturb theadjustment.

In order to anchor the adjusting-rod against lengthwise displacement, itis provided about midway of its length with an annular groove d, whichis saddled by a staple Z2 driven into the substance of the spindle andserving as a yoke, in conjunction with the annular groove, to hold therod against movement other than that of rotation. lt is not, however,strictly necessary to anchor the rod; but it is better, as it insurespositive concurrent movement of both cheeks. The rod should be carriedthrough the spindle beneath the contact of the tracker-sheet therewith,and conveniently this is done by grooving the spindle, as at e, to adepth equalling or quite exceeding the diameter of the rod and layingthe rod in such groove.

Instead of reducing the ends of the reelspindle'and placing the cheekson these reduced ends the spindle may be oi' the same diameterthroughout, as in F ig. 7, and the longitudinal groove therein for thereception of the adjusting-rod may be made of sufcient depth to receivea renterin g bored and screw -threaded oifset f from the metal hub ofeach cheek for engagement with said ad justing-rod. Such constructionhas this advantage, that the roll can never expand beyond thesupporting-surface of the spindle.

I claim- 1. The combination of a suitable spindle, a roll of perforatedmusic wound upon said spindle, metal collars or rings mounted uponreduced end portions of said spindle, cheekplates secured to saidcollars or rings, a longitudinally-eXtending rod having right and leftthreaded end portions engaging threaded sockets in said rings orcollars, said rod having a polygonal end adapted to receive a key, and astaple driven into the spindle and engaging a groove in said rod, so asto hold the latter against endwise movement.

2.` The combination of a suitable spindle, a roll of perforated musicmounted upon said spindle, metal collars mounted upon the end portionsof said spindle, a rod lying in a longitudinal groove in said spindleand having right and left threaded end portions engaging threadedopenings in said metal collars, and wooden cheek-plates secured to saidcollars, said rod being rotatable for the purpose of simultaneouslyadjusting said cheek-plates toward and away from the terminals of saidmusic-roll.

3. The combination of a wooden spindle,hav

ing reduced end portions, metal pins driven into the ends of saidspindle and having projecting end portions, metal rings or collarsslidably mounted upon reduced end portions of the spindle, woodencheek-plates secured to said rings or collars, a roll of perforatedmusic wound upon the spindle between the cheek-plates, alongitudinally-extending rod laid in a groove in said spindle, said rodhaving right and left threaded end portions extending through threadedopenings in said rings or collars, and an anchor for preventing endwiseshifting on the part oi the rod, said rod having a polygonal end portionadapted to receive a key.

4. The combination of a suitable spindle, a roll of perforated musicmounted upon said spindle, cheek-plates slidably mounted upon thereduced end portions of said spindle, and a longitudinally-extending rodhaving right and left threads engaging threaded portions of the saidcheek-plates, said rod being' rotatable for the purpose oisimultaneously adjusting the cheek-plates toward and away from the endsof the music-roll, and said rod having a polygonal end adapted toreceivea key.

5. The combination of a spindle, a sheet of perforated music wound uponsaid spindle, cheek-platesmounted upon reduced end portions of saidspindle and arranged to oppose each other at opposite ends of the rollol music and a longitudinally-extendiug rod having` right and leftthreads engaging threaded portions of the said cheek-plates, said rodbeing rotatable for the purpose oi simultaneously adjusting the saidcheek-plates toward and away from the ends of said roll oil music.

6. The improved music-roll, comprising a spindle with reduced endportions, nietal rings mounted on said reduced end portions and providedwith lateral projections having threaded openings, cheek-plates securedto said rings,

the spindle being provided with a longitudinally-extending groove,aright-and-leftscrew engaging the openings in the projections on saidrings, and a staple driven into said spindle and applied to the middleportion ol. said screw to keep the latter from shifting endwise.

Signed by me at Chicago, Cook county, lllinois, this 20th day ofOctober, 1899.

HARRY M. SMITH. Witnesses:

GHAs. C. BULKLEY, JOSEPH G. PARKINsoN.

IOO

